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 |
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(11) |
EP 0 537 136 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
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07.07.1993 Bulletin 1993/27 |
| (43) |
Date of publication A2: |
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14.04.1993 Bulletin 1993/15 |
| (22) |
Date of filing: 01.10.1987 |
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International Patent Classification (IPC)5: A61M 25/00 |
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Designated Contracting States: |
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BE CH DE FR GB IT LI NL SE |
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Priority: |
06.10.1986 US 915474
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Application number of the earlier application in accordance with Art. 76 EPC: |
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87308731.6 / 0263645 |
| (71) |
Applicant: Catheter Technology Corporation |
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Salt Lake City
Utah 84104 (US) |
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| (72) |
Inventors: |
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- Nichols, Colins J.
Fruit Heights,
Utah 54037 (US)
- Nordgren, Gregory N.
West Valley,
Utah 84102 (US)
- Moorehead, Harvey Robert
South Salt Lake City,
Utah 84121 (US)
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| (74) |
Representative: Marsh, Roy David et al |
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Hoffmann Eitle & Partner
Patent- und Rechtsanwälte
Postfach 81 04 20
81904 München
81904 München (DE) |
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Remarks: |
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This application was filed on 05 - 01 - 1993 as a divisional application to the application
mentioned under INID code 60. |
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| (54) |
Catheters and methods of using such catheters |
(57) An indwelling catheter tube 30 has a proximal end and a distal end and at least one
lumen, the transverse shape of each internal lumen being characterised by an asymmetrical
liquid passageway comprising at least one corner so that occlusion of flow is prevented
even when the catheter tube is inadvertently kinked.